Blue Hills Mungada West and East (Tenements M59/595 and M59/596) Infrastructure Areas; Targeted Flora Surveys June, July and September 2011
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SMC: Blue Hills Mungada West and East (Tenements M59/595 and M59/596) Infrastructure Areas; Targeted Flora Surveys June, July and September 2011 15 March 2012 Version 2 (Final) maia.net.au SMC: Blue Hills Mungada West and East (Tenements M59/595 and M59/596) Infrastructure Areas This document describes the vegetation and flora recorded during targeted flora surveys carried out for Sinosteel Midwest Corporation in June, July and September 2011 on tenements M59/595 and M59/596 at Mungada West and East at Blue Hills. It also discusses the significance of the flora and vegetation of the Infrastructure Areas surveyed and estimates impacts to the significant flora and vegetation of these areas. Maia Environmental Consultancy Pty Ltd ABN 25 141 503 184 PO Box 1213 Subiaco WA 6904 Document Prepared By: Rochelle Haycock and Scott Hitchcock Document Reviewed By: Christina Cox Document Revision Number: 2 (Final) Date: 15 March 2012 This document has been prepared for Sinosteel Midwest Corporation Limited (SMC) by Maia Environmental Consultancy Pty Ltd (Maia). Copyright and any intellectual property associated with the document belong to Maia and Sinosteel Midwest Corporation. The document may not be reproduced or distributed to any third party by any physical or electronic means without the permission of SMC or Maia. SMC: Blue Hills Mungada West and East (Tenements M59/595 and M59/596) Infrastructure Areas Table of Contents 1 INTRODUCTION ................................................................................................................................ 1 1.1 BACKGROUND ......................................................................................................................................... 1 1.2 PROJECT SCOPE OF WORK ......................................................................................................................... 1 2 BACKGROUND INFORMATION .......................................................................................................... 2 2.1 DATABASE AND LITERATURE SEARCHES ........................................................................................................ 2 2.2 SURVEY METHOD ..................................................................................................................................... 2 2.3 CONSERVATION SIGNIFICANT SPECIES PREVIOUSLY RECORDED AT BLUE HILLS .................................................... 3 2.4 LAND SYSTEMS ........................................................................................................................................ 3 2.5 BEARD’S VEGETATION MAPPING ................................................................................................................ 4 2.6 VEGETATION OF THE STUDY AREA AND SURROUNDS ...................................................................................... 5 3 RESULTS ........................................................................................................................................... 9 3.1 SPECIES RECORDED ................................................................................................................................... 9 3.2 RANGE EXTENSIONS.................................................................................................................................. 9 3.3 CONSERVATION SIGNIFICANT FLORA ............................................................................................................ 9 3.3.1 Commonwealth Environment Protection and Biodiversity Conservation Act 1999 .................... 9 3.3.2 Western Australian Wildlife Conservation Act (1950-1979) ........................................................ 9 3.3.3 Priority Flora .............................................................................................................................. 11 3.4 INTRODUCED FLORA ............................................................................................................................... 14 3.4.1 Weeds of National Significance ................................................................................................. 14 3.4.2 Agriculture and Related Resources Protection Act 1976 ........................................................... 14 3.4.3 Environmental Weeds ................................................................................................................ 14 3.5 VEGETATION ......................................................................................................................................... 15 3.6 VEGETATION CONDITION ......................................................................................................................... 19 3.7 ECOLOGICAL COMMUNITIES ..................................................................................................................... 19 4 CONSERVATION SIGNIFICANCE ....................................................................................................... 20 4.1 CONSERVATION SIGNIFICANCE: FLORA ....................................................................................................... 20 4.1.1 Regional Significance ................................................................................................................. 20 4.1.2 Local Significance ....................................................................................................................... 23 4.1.3 Summary of Regional and Local Significance: Flora .................................................................. 23 4.2 CONSERVATION SIGNIFICANCE: VEGETATION .............................................................................................. 24 4.2.1 Regional Significance ................................................................................................................. 24 4.2.2 Local Significance ....................................................................................................................... 25 4.2.3 Summary of Regional and Local Significance: Vegetation ........................................................ 27 4.3 CONSERVATION SIGNIFICANCE: ECOSYSTEMS .............................................................................................. 27 5 IMPACTS ........................................................................................................................................ 28 5.1 IMPACTS TO CONSERVATION SIGNIFICANT SPECIES ....................................................................................... 28 5.2 IMPACTS TO VEGETATION ........................................................................................................................ 30 5.3 IMPACTS TO LAND SYSTEMS ..................................................................................................................... 30 5.4 IMPACTS TO BEARD’S VEGETATION ASSOCIATIONS ....................................................................................... 30 5.5 IMPACTS TO FCTS .................................................................................................................................. 31 maia Page i SMC: Blue Hills Mungada West and East (Tenements M59/595 and M59/596) Infrastructure Areas 5.5.1 Impacts from the New Infrastructure Areas .............................................................................. 32 5.5.2 Cumulative Impacts ................................................................................................................... 32 5.6 IMPACTS TO PEC .................................................................................................................................... 34 5.7 SUMMARY OF IMPACT TO SIGNIFICANT SPECIES AND FCTS ............................................................................ 34 6 CONCLUSIONS ................................................................................................................................ 36 7 PROJECT TEAM ............................................................................................................................... 37 8 REFERENCES ................................................................................................................................... 38 9 FIGURES ......................................................................................................................................... 41 TABLES TABLE 2.1: LAND SYSTEMS, LANDFORMS AND VEGETATION OF THE INFRASTRUCTURE AREAS 3 TABLE 2.2: VEGETATION ASSOCIATIONS MAPPED BY BEARD IN THE INFRASTRUCTURE AREA 4 TABLE 2.3: BEARD’S VEGETATION ASSOCIATIONS OF THE INFRASTRUCTURE AREAS - PAST AND CURRENT EXTENT AND RESERVATION STATUS 4 TABLE 2.4: VEGETATION ASSOCIATIONS MAPPED AT BLUE HILLS BY BENNETT CONSULTING ECOLOGISTS (2004) 5 TABLE 2.5: FCTS ON SMC’S BLUE HILLS TENEMENTS - WOODMAN ENVIRONMENTAL CONSULTING (2008) 6 TABLE 2.6: FCTS DESCRIBED BY MARKEY AND DILLON (2008) 7 TABLE 3.1: WEEDS IN THE INFRASTRUCTURE AREAS 15 TABLE 3.2: WOODMAN’S FLORISTIC COMMUNITY TYPES (FCT) OF THE INFRASTRUCTURE AREAS 16 TABLE 4.1: REGIONAL AND LOCAL SIGNIFICANCE OF THE PRIORITY FLORA RECORDED IN THE INFRASTRUCTURE AREAS 23 TABLE 4.2: LAND SYSTEMS OF THE INFRASTRUCTURE AREAS 24 TABLE 4.3: BEARD’S VEGETATION MAPPING IN THE INFRASTRUCTURE AREAS 25 TABLE 4.4: LOCAL SIGNIFICANCE OF FCTS IN INFRASTRUCTURE AREAS 26 TABLE 4.5: REGIONAL AND LOCAL SIGNIFICANCE OF THE VEGETATION OF THE INFRASTRUCTURE AREAS 27 TABLE 5.1: ESTIMATED IMPACTS TO CONSERVATION SIGNIFICANT FLORA IN THE NEW INFRASTRUCTURE AREA 29 TABLE 5.2: ESTIMATED CUMULATIVE IMPACTS TO ACACIA